NDLI: Multi-Conjugate Adaptive Optics VLT imaging of the distant old open cluster FSR 1415

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Multi-Conjugate Adaptive Optics VLT imaging of the distant old open cluster FSR 1415

Content Provider	Semantic Scholar
Author	Momany, Y. Ortolani, Sergio Bonatto, Ch. Bica, Eduardo L. D. Barbuy, Beatriz
Copyright Year	2008
Abstract	We employ the recently installed near-infrared Multi-Conjugate Adaptive Optics demonstrator (MAD) to determine the basic properties of a newly identified, old and distant, Galactic open cluster (FSR 1415). The MAD facility remarkably approaches the diffraction limit, reaching a resolution of 0.07 arcsec (in K), that is also uniform in a field of ∼1.8 arcmin in diameter. The MAD facility provides photometry that is 50 per cent complete at K ∼ 19. This corresponds to about 2.5 mag below the cluster main-sequence turn-off. This high-quality data set allows us to derive an accurate heliocentric distance of 8.6 kpc, a metallicity close to solar and an age of ∼2.5 Gyr. On the other hand, the deepness of the data allows us to reconstruct (completeness-corrected) mass functions (MFs) indicating a relatively massive cluster, with a flat core MF. The Very Large Telescope/MAD capabilities will therefore provide fundamental data for identifying/analysing other faint and distant open clusters in the Galaxy III and IV
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://lume.ufrgs.br/bitstream/handle/10183/90275/000673993.pdf;jsessionid=E2658EAEB39F08AFE94BF25F451C7CF4?sequence=1
Alternate Webpage(s)	http://arxiv.org/pdf/0810.0341v1.pdf
Language	English
Access Restriction	Open
Subject Keyword	Diameter (qualifier value) Flexed Sidebent Rotated MAD MAG Technology Co. Mass Spectrometry Photometry Virtual Link Trunking
Content Type	Text
Resource Type	Article

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